论文部分内容阅读
八音琴片是八音盒的发声元件,是由高碳钢冷轧后经热处理制成,世界上以日本的八音琴制造业最为发达,年产量八千万个,行销世界各地。目前我国八音琴生产主要引进日本散件组装。 为改变依靠进口的局面,北京市第二轻工业总公司,将八音机芯的开发列为1985～1987年国家重大科技开发项目之一。其中核心元件,八音琴片虽在1978年开展部分工作,但由于种种原因进展不大。 1984年6月北京钢铁学院与北京玩具一厂协作研制八音琴片材料的热处理工艺及声学性能。从材料的成分、组织、晶粒大小、夹杂分布、硬度、韧性方面进行了大量研究
Octopus is the sound element of the music box. It is made of high-carbon steel after cold-rolled and heat-treated. The world’s most developed octopone is Japan. Its annual output is 80 million pieces and is marketed all over the world. At present, China’s octave main production of Japan’s introduction of spare parts assembly. In order to change the situation of relying on imports, Beijing No. 2 Light Industry Corporation listed the development of the Bainian movement as one of the major national scientific and technological development projects from 1985 to 1987. Some of the core components and octaveolos did some work in 1978, but due to various reasons, little progress has been made. In 1984 June Beijing Iron and Steel Institute and Beijing toy factory co-development of eight music piece heat treatment materials and acoustic properties. A great deal of research has been done on the composition, microstructure, grain size, inclusion distribution, hardness and toughness of the material